CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized	10,000	10,000
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized	600,000	600,000
Treasury stock, shares	3,736	3,699